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Finding the Fourth Proportional to 139,240.14, 192,251.25 and 85,597.08

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Solution

The fourth proportional to 139,240.14, 192,251.25 and 85,597.08 is: 118,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,240.14 : 192,251.25 = 85,597.08 : x
  2. Step 2: Convert to fraction form
    139,240.14/192,251.25 = 85,597.08/x
  3. Step 3: Cross multiply
    139,240.14x = 192,251.25 × 85,597.08
  4. Step 4: Simplify right side
    139,240.14x = 16,456,145,626.35
  5. Step 5: Solve for x
    x = 16,456,145,626.35/139,240.14
  6. Step 6: Final answer
    x = 118,185.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.